<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<title></title>
	<link rel="stylesheet" href="">
</head>
<body>
	<input type="button" name="">
	<input type="button" name="">
	<input type="button" name="">
	<input type="button" name="">
	<button type="button"></button>
		
	</div>
	<input type="" name="">
	<script type="text/javascript">
		var i = document.querySelectorAll('input[type="button"]');
		console.log(i)
		console.log(i.length)
	</script>
</body>
</html>